hi I'm trying to download a file using this

-- Checking if connection is available
if Network.isWifiEnabled() then

-- Download 
Network.downloadFile("
-- Loading image in memory and deleting it from storage
img = Graphics.loadImage("ud0:/")

I have the other things sort but when I run it gives me error line 2 is there a different line to download a file

Hi,

I've encountered a potential issue with the 'System.executeUri' command when using it in RetroFlow.

For users with a large library of games (over 2,000), after the app executes the 'System.executeUri' command to load a game, they are prompted to accept closing the app.

"The following application will close, Cancel / Okay"

If the game library is smaller there is no message about the app closing.
Any help would be appreciated, not sure if it's related to how much resource the app is using with larger game libraries.

Retroflow launch command for reference:
System.executeUri("psgm:play?titleid=RETROVITA" .. "&param=" .. (def_core_name) .. "&param2=" .. rom_location)
System.exit()

Vita launcher cpp command in case it helps:
char uri[512];
// I've removed an if statement as it's probably not relevant
sprintf(uri, "psgm:play?titleid=%s&param=%s&param2=%s", RETROARCH_TITLE_ID, retro_core, game_path.c_str());
sceAppMgrLaunchAppByUri(0xFFFFF, uri);
sceKernelDelayThread(1000);
sceKernelExitProcess(0);

Thanks

The latest release is 49 commits behind...
Thank you very much

How to reproduce ?
Run script in which keyboard is shown, then press the numpad icon, you will see flicker just over the "symbols" keypad. I'm pretty sure it happens with lpp-vita keyboard sample code as well.

Versions affected ?
R6 as well as nightly dating of september 28 2017, I'm using safe eboot.

A built-in Telnet server that exposes interactive mode for the session (debug.debug()) would be useful for development & debugging, in a similar way to the current built-in FTP server that exposes source code & data files for the session.

Functions that deal with file status (declared in VitaSDK's File Status Library, <psp2/io/stat.h>) are not exposed by LPP, specifically the functions dealing with SceIoStat: sceIoGetstat(), sceIoGetstatByFd(), sceIoChstat(), and sceIoChstatByFd(). (The ByFd variants would likely fold into LPP's handle interface, provided from functions like System.getFile).)

These functions are useful for implementing file managers at least.

Hi,

Using the video sample, adding true to Video.open on line 7 the video stops at the end of playback.

Not sure if I'm using the command incorrectly or it is a bug

Using most recent nightly build

The 3ds version supports http will the vita version?

Hello!

It looks like the nightlies stopped being released somewhere around the start of 2020. I've tried to build a version of lpp-vita myself but I'm not absolutely sure of everything I'm doing and got tripped up by luajit. I'm not a C person, recent builds would be enormously helpful

About 50% of the apps that I generate from my lua code can't be deleted from the psvita. Not even rebuilding the database will solve this issue.

Hi @Rinnegatamante I was hoping you could help me. This is really not an issue of lpp but really I literally can't think of any other place to ask this.

Im using the Custom Live Area app that uses your lua player, and I'm getting disk I/O error on line 22 of a certain lua file:

I tried messing with the code but couldn't make it to work. Could you have any clue of what is happening?

On line 18 it should enter 74 times, those are the customized app names I have and the number of folders/item on that path. If I reduce it to 70, it works. Also, the app finds 170 titles so the general loop should repeat 170 times.

Also, tried to different SDs. I even tried without SD2VITA, directly on real internal storage.

I've opened an issue on the app's GH but it is unlikely to have an answer: AntHJ/Custom-LiveArea#4

I would appreciate any kind of comment or suggestion regarding this matter.

Thanks in advance.

having trouble with this does seem to work

attempt to call field 'removeDir'(a nil vaule)

same for does doesDirExists

Any plans to add functions to the Render Module for modifying the view matrix? (set 3d projection)

I am getting this error when running the demo with the video sample provided.

Would it be possible to implement/patch the require() function in lua

in this sample below, drawPixel() does nothing:

while true do
  Graphics.initBlend()
  Screen.clear()  
  Graphics.drawLine(10, 25, 100, 250, Color.new(25, 200, 120))
  Graphics.fillRect(260, 275, 350, 500, Color.new(25, 200, 120))
  Graphics.drawPixel(5, 5, Color.new(25, 200, 120))
  Graphics.termBlend()
  Screen.flip()  
  if Controls.check(Controls.read(), SCE_CTRL_TRIANGLE) then
    System.exit()
  end
end

In RetroFlow/HexFlow/etc there's an issue with the "click" sound. Use the analog stick to move while spamming the "R" button is an easy way to get it: the audio overlaps and causes a super loud glitch sound. You might say "well that's easy, don't hold analog stick and spam R button" but once you have enough apps installed, it happens very often with just using analog stick. I've tried many things to fix it like checking whether the audio is playing before playing the sound again, setting a timer of minimum time before next click is allowed... these solutions ALMOST worked but still sometimes (admittedly less often though) there was the super loud glitch sound. What worked was making the click audio into a .mp4 file and using "Video.jumpToTime(0)" and "Video.resume()" and it will act exactly how I want it: no more super loud glitch sound from overlapping .mp3 audio.

...but there's just 1 issue. Having it as a video causes lag in the app

Can you please add this command? Sound.jumpToTime(click, 0)

It's just an example. In this case, it's assuming the audio file has been loaded to variable "click" by using this feature that already exists: Sound.open("app0:/DATA/click2.wav")

I just need to be able to jump to a time in the audio so 2 sound.play() of the same audio don't glitch out please.

Thank you Rinne for all your good code!!!!! And thanks if you can help figure this out.

Hello I'm on LPP Vita v4 and I can't draw iamges.
It's work with the "image sample" but no with my image. I use jpg, png nothing work.
It's give me that error : (C2-12828-1)
Saved Core File Succeeded
ux0:data/psp2core-1472001169-0x0000283fdb-eboot.bin.psp2dmp

And that's my code:

white = Color.new(255,255,255,255)
fond = Graphics.loadImage("ux0:/app/CALC00001/medias/fond.png")
while true do
Graphics.initBlend()
Screen.clear()
Graphics.debugPrint(850, 5, "version 0.1", white)
Graphics.debugPrint(10, 5, "Calculatrice", white)
Graphics.drawImage(50, 50, fond)
Graphics.termBlend()
Screen.flip()
if Controls.check(Controls.read(), SCE_CTRL_START) then
System.exit()
end
end

It's free for opensource projects.

I'm converting/upgrading my older Lua PSP game to your lpp-vita library. I have some Amiga MOD files used for audio.. I have them converted to mp3 currently. The space savings for MOD files are huge in comparison.. (I don't know how to incorporate the feature)

Just a wishful request. Thank you!

Sound.openMod (has a nice ring to it, no? ;) )

On my screen it makes the permanently-visible top header take 1/3 of the page height.

Perhaps this is an invalid bug, but when using Sound.term() the game crashes. The workaround is simple : don't use it :)

requestString method returns nil:

Network.init()
if Network.isWifiEnabled() then
result = Network.requestString("http://httpbin.org/get")
end
Network.term()
while true do
...
Graphics.debugPrint(5, 5, result, Color.new(255,255,255) ) -- this nil
...
end

Would be nice to have asynchronous versions for certain functions that can stall for several seconds. In the specific:

• System.extractZIP
• System.extractFromZIP
• Network.downloadFile
• Network.requestString
• Render.loadObject

scheme of the project:

local db = Database.open("file.db")
function a()
  Database.execQuery(db, "CREATE TABLE ....;")
end
function b()
  Database.execQuery(db, "INSERT ....;") --> "error appears here"
end

Can't draw " / " line. if i draw " / " line i am getting " \ " line.
Maybe it's because you're switching y1 and y2 (if y2 < y1) in LuaGraphics.cpp (127 - 131) Lines
last nightly build

As the title says, a fresh make won't build as it would throw the following error:

source/luaGraphics.cpp:31:10: fatal error: utils.h: No such file or directory
   31 | #include <utils.h>
      |          ^~~~~~~~~
compilation terminated.

This was tested in three different machines, on fresh installs, installing the VitaSDK with vdpm and immediately trying to build lpp-vita:

• Windows 10 WSL2 w/Ubuntu 20.04
• Raspbian something
• MacOS 12.6

What is missing is the extra step as done by the Github actions:

git clone https://github.com/xerpi/libvita2d
sudo -E cp libvita2d/libvita2d/include/utils.h $VITASDK/arm-vita-eabi/include/utils.h

By doing this, the build finished successfully.

I didn't find any function for this in the documentation. Do you consider implement it?

How to use this function?

This sample is correct?

px = 0
while true do
	Graphics.initBlend()
	Screen.clear(Color.new(255,204,0))
	Graphics.debugPrint(200, 5, px, Color.new(255,255,255) )
       Graphics.termBlend()
	Screen.flip()
	px = Screen.getPixel(10,10)
end

I'm getting only negative values

if I put above Screen.flip(), I have the same result

Loading this font : https://fontlibrary.org/en/font/xolonium (regular) worked. However on subsequent attempts to run, it fails to load with the error "could not load font". A "restart" is enough to work.

This font : https://fontlibrary.org/en/font/archivo-narrow

Crashed the entire app (system error) and a psp2dmp is created.

We discussed this on IRC, I hope this helps, if you need psp2dmp files I'm willing to send them.

Thx !

I was coding for my PSVITA, and when i was implementing sound, it wouldn't play and would display the error. I have played the song in VitaShell and on my computer and it works fine. Any help?

EDIT - I didnt use sound.Init()

I am definitely using a working mp3, it plays fine inside VitaShell, but when I try to open it with Sound.open I just get this error:

unknown audio file format.

This is my code, am I doing something wrong?

local white = Color.new(255,255,255)

Sound.init()

local snd = Sound.open("ux0:/audio.mp3")
Sound.play(snd, LOOP)

while true do
	local pad = Controls.read()
	if Controls.check(pad, SCE_CTRL_CIRCLE) and Sound.isPlaying(snd) then
		Sound.pause(snd)
	elseif Controls.check(pad, SCE_CTRL_SQUARE) and not Sound.isPlaying(snd) then
		Sound.resume(snd)
    end

	Graphics.initBlend()
	Screen.clear()
	Graphics.debugPrint(5, 20, "Press CIRCLE to pause sound.", white)
	Graphics.debugPrint(5, 40, "Press SQUARE to resume sound.", white)
	Screen.flip()

end

Any help is appreciated, thanks :)

RT.

This would be pretty useful if it is possible to implement, will look at the VitaSDK again.

Just a few typo's :

• under Graphics > drawPartialImage two times the link, while one should be drawImageExtended
• under Network > requestStringAsync shows an example of Network.requestString()

Using lpp-vita r6, eboot_unsafe.bin and 'TTMT' as title ID; I get Error 0x80AF5022 when the vpk finishes installing.

Am I doing something wrong?

In the function lua_emptyrect in C++, the function vita2d_draw_line is used to draw the outline of the defined rectangle.

vita2d_draw_line expects x1, y1, x2, y2, color as arguments.
but in lua_emptyrect the following arguments are given

(x1), (y1), (difference between x2 and x1), (y1), color
(x1), (y2), (difference between x2 and x1), (y2), color
(x1), (y1), (x1), (difference between y2 and y1), color
(x2), (y1), (x2), (difference between y2 and y1), color

example:
if i want to draw a empty Rect from the coordinates
x: 927, y: 64,
to
x: 959, y: 96

It will draw the following lines:
x1: 927, y1: 64, x2: 32, y2: 64
x1: 927, y1: 96, x2: 32, y2: 64
x1: 927, y1: 64, x2: 959, y2: 32
x1: 959, y1: 64, x2: 959, y2: 32

Resulting in something, that locks like the attached ScreenShot
the yellow rectangle in the picture are the same coordinates, but called with fillRect, instead of fillEmptyRect.

hi man sorry about before in the other one I was trying to rush I will explain better this sorry please help me this is my code below

-- Starting progressbar message
System.setMessage(".\nPlease wait...", true)
if System.doesFileExist("app0:/ud0_files.zip")==true then
System.deleteDirectory("ud0:/")
System.extractZIP("app0:ud0_files.zip", "ud0:/")

as you can see I'm trying to display a progress showing me when extracting the bar doesn't show but when I change if System.doesFileExist("app0:/ud0_files.zip")==true then to ==false then it display the progress bar but nothing gets extracted of course I think its a bug I'm not sure
hopefully you can help me sorry one again about before

It would be really cool if there was a way to add border radius to images (css equivalent: img {border-radius: 8px}) 😀

Documentation shows Keyboard.start as the function to start the keyboard, it's Keyboard.show instead

Version r6 and nightly

0 bytes file appears

• Attempting to load non-existent OBJ results in LPP crashing
• Buggy Rendering on some Textures
• Won't render OBJ sub-meshes (individual parts have to be exported into a separate mesh)

Using latest build, unsafe eboot

index.lua:

switch_grey = Color.new(57, 50, 44)

while true do

    Graphics.initBlend()
    Screen.clear()

    Graphics.fillRect(0, 960, 0, 544, switch_grey)

    Graphics.fillEmptyRect(10, 50, 100, 250, Color.new(25, 200, 120))

    Graphics.termBlend()

    Screen.flip()

end

.vpk download

The function Graphics.drawLine in Lua is documented as Graphics.drawLine (x1, y1, x2, y2, color).

But lua_line in C++ requires to call Graphics.drawLine (x1, x2, y1, y2, color)

Hi,

Not sure if it's a bug or i'm not using the command properly,

When using System.open with FWRITE, FRDWR, FCREATE gives error: cannot open requested file.
the issues doesn't appear when using FREAD

sample:

toWrite = "Hello world"
local fh = System.openFile("app0:/file.txt", FRDWR)
System.writeFile(fh, toWrite, #toWrite)
System.closeFile(fh)

error line 2

using Latest nightly build